一、化学名：乙酸钾
二、分子式：c2h3ko2
三、分子量：98.14
四、cas：127-08-2
五、性状：白色结晶性粉末，易潮解，有咸味。1mol/l水溶液ph值为7.0-9.0。相对密度（d425）1.570, 熔点292℃, 极易溶于水(235g/100ml, 20℃; 492g/100ml, 62℃)、乙醇(33g/100ml)和甲醇(24.24g/100ml, 15℃)，不溶于乙醚。
六、用途：缓冲剂、中和剂、防腐剂、护色剂（动植物天然色保护剂）。
七、包装：内衬聚乙烯塑料袋，外套复合塑料编织袋包装，每袋净重25kg。
八、贮存与运输：本品应贮存在干燥通风清洁的库房中，装载运输时要轻装轻放，防止包装破损，防止受潮、受热，运输过程中防止雨淋受潮，应与有毒物品隔离。
| 质量指标 | specification | jecfa |
| 含量（以干基计），w/% ≥ | content(as dry basis),w/% ≥ | 99.0 |
| 干燥失重（150℃，2h），w/% ≤ | loss on drying(150℃,2h), w/% ≤ | 8.0 |
| 碱度 | alkalinity | 正常(normal) |
| 钾化合物 | test for potassium | pass test |
| 钠化合物 | test for sodium | 正常(normal) |
| 铅，mg/kg ≤ | lead,mg/kg ≤ | 2 |
| 乙酸盐 | test for acetate | pass test |
| ph值（50g/l溶液，25℃） | ph value (50g/l solution,25℃) | 7.5-9.0 |
1、chemical name: potassium acetate
2、molecular formula : c2h3ko2
3、molecular weight: 98.14
4、cas: 127-08-2
5、character: it is white crystalline powder. it’s easily deliquescent and tastes salty. ph value of 1mol/l aqueous solution is 7.0-9.0. relative density（d425） is 1.570. melting point is 292℃. it’s highly soluble in water (235g/100ml, 20℃; 492g/100ml, 62℃), ethanol (33g/100ml) and methanol (24.24g/100ml, 15℃), but insoluble in ether.
6、usage: it is used as buffering agent, neutralizer, preservative and color fixative to
protect natural colors of animals and plants.
7、packing: it is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. the net weight of each bag is 25kg.
8、storage and transport: it should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. furthermore, it must be stored separately from poisonous substances.